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SYSTEM_DASHBOARD
Embedded Systems

Customized Secure OS

Immutable, offline-first Linux distribution designed for mission-critical kiosk hardware. Features a read-only root filesystem for maximum security.

ACCESS_LOGS // SYSTEM_RESTRICTED

➜ Initializing secure environment...

➜ [OK] Kernel modules loaded.

ℹ Connecting to RTSP stream... Latency: 85ms

... [Redacted protocol data] ...

VISUALS REDACTEDScreenshot capture disabled by policy policy_v2.1

Deployment

Private Network Only

Technology Stack

Arch LinuxBashSystemDC++

Key Features

  • Read-Only Root Filesystem (OverlayFS)
  • Silent Boot (Custom Plymouth Splash)
  • Watchdog Hardware Integration
  • Automated Driver Injection Pipeline

Proof anchors

Constraints

  • The client required a tamper-proof OS for public payment terminals that could withstand power failures and physical tampering.
  • Must be tamper-resistant in a public environment.
  • Must tolerate power failures and unexpected reboots.

Architecture decisions

  • We engineered a custom ISO pipeline based on Arch Linux.
  • Read-Only Root Filesystem (OverlayFS)
  • Silent Boot (Custom Plymouth Splash)
  • Watchdog Hardware Integration
  • Automated Driver Injection Pipeline

Deployment context

  • Immutable, offline-first Linux distribution designed for mission-critical kiosk hardware.
  • Deployment is restricted (private network / non-public).

Validation approach (typical)

These are common validation checks for this class of system.

  • Performance profiling against the stated constraints (latency, boot time, throughput).
  • Failure-mode checks (network loss, power-cycle, restart recovery).
  • Regression checks for core workflows before release.

The Challenge

The client required a tamper-proof OS for public payment terminals that could withstand power failures and physical tampering. Standard distributions were too heavy and insecure.

The Solution

We engineered a custom ISO pipeline based on Arch Linux. The root filesystem is mounted as Read-Only (OverlayFS), ensuring that no user changes persist after a reboot. We also implemented a custom silent boot sequence.